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1.
菟丝子与其混淆品的鉴别   总被引:2,自引:0,他引:2  
佘玫惠 《海峡药学》2006,18(6):74-75
目的介绍菟丝子与南方菟丝子、欧菟丝子、日本菟丝子真伪鉴别,为识别正品菟丝子提供依据。方法采用性状、薄层色谱的鉴别。结果正品和伪品具不同鉴别特征。结论本文提供的鉴别方法能准确地把菟丝子和伪品区别开来。  相似文献   

2.
目的:通过对菟丝子常见伪品逐一梳理介绍鉴别要点,探讨分析菟丝子的质量情况。方法:通过菟丝子的日常验收检验,利用性状、水煮、压碎等简单的经验鉴定方法,区分出菟丝子不同的掺伪品。结果:菟丝子经验鉴别方法简单准确,62批市售菟丝子中只有8批样品为正品,其他54批样品存在掺杂、掺伪情况。结论:应加强对菟丝子掺伪品的鉴别,对菟丝子的质量情况进行系统分析研究,控制菟丝子的药材质量。  相似文献   

3.
王建伟  王伟影 《中国药业》2012,(20):106-107
目的鉴别菟丝子真伪,以利临床用药安全。方法将正品菟丝子及其4种伪品从性状特征、显微鉴别、理化反应、薄层色谱等方面进行比较和鉴别。结果人造伪品分别用石灰、水泥、淀粉、泥沙加工制成,虽外观与正品相似,但经鉴别,均能明确区分其真伪。结论该方法仪器设备要求不高、操作简便、结果可靠,可作为菟丝子与人造菟丝子的鉴别法。  相似文献   

4.
黄锦贵 《海峡药学》2003,15(3):49-50
目的:对伪品菟丝子——莎草种子的鉴定,为正品菟丝子的鉴别提供实验依据。方法:采用性状、显微特征、理化鉴别、薄层色谱和紫外光谱的鉴别方法。结果:正品和伪品具不同鉴别特征。结论:探讨研究提供的鉴别方法,能准确地鉴别正品菟丝子和莎草的种子。  相似文献   

5.
菟丝子与伪品芜菁子的性状及薄层色谱鉴别绍兴市药品检验所浙江312000裘汉幸杨锦鑫菟丝子系旋花科植物菟丝子(CuscutachinensisLam.)的干燥成熟种子。其主要功能为滋补肝肾、明目、益精、安胎等。近年来,由于临床用量增多,各地相继发现伪品...  相似文献   

6.
运用性状、显微、TLC和紫外分光光度法,对菟丝子及其伪品稗属草籽进行鉴别.  相似文献   

7.
运用性状、显微、TLC和紫外分光光度法,对菟丝子及其伪品稗属草籽进行鉴别.  相似文献   

8.
孙振平  孙立华  梅雪  李娜 《中国药师》2013,16(8):1251-1252
目的:通过对《中国药典》收载菟丝子药材中的杂质进行检测,有效地实现对其质量评价.方法:采用《中国药典》及补充方法检测了96份不同产地的菟丝子药材样本中的杂质.结果:96份菟丝子药材样本中,仅有3份伪品,剩余的93份菟丝子药材样本掺有不同程度的杂质,其中52份达到药典标准,41份未达到药典标准,定为掺伪品.结论:针对目前菟丝子绝大多数掺有杂质的现状,完全按药典方法,其中性状、鉴别项无法下结论,用补充方法对杂质进行了分类检测,并重新进行了质量评价,结果与国家标准相符.  相似文献   

9.
菟丝子的一种新伪品   总被引:2,自引:0,他引:2  
菟丝子为旋花科植物菟丝子CuscutachinensisLam.的干燥成熟种子。目前,商品中混伪品较多。除同科植物亚麻菟丝子CuscutaepilinumWeihe.、金灯藤(日本菟丝子)CuscutajaponicaChoisy、十字花科植物芜菁Bra?..  相似文献   

10.
对菟丝子及其混伪品千穗谷进行性状、薄层色谱及紫外吸收光谱比较鉴别。  相似文献   

11.
目的:归纳总结近年来维吾尔药材质量存在的问题,为自治区药材市场的监管提供参考。方法: 通过维药市场调研、民族医院走访、名实考证、询征行业专家等方式,分析当前维吾尔药材质量存在的问题。结果与结论:调研发现,由于维吾尔药材基础研究薄弱、药材来源情况复杂,加上基原鉴定和质控方法欠缺,致使市场出现名实不符、代用误用、同名异物、同物异名等混乱现象。建议加强对维药标准的制修订工作;加大文献调研和实地考察,正本清源;扩大维吾尔药材种植规模,并加强维药材市场监管。  相似文献   

12.
Harmonization of the market for herbal medicines is a fundamental requirement for European industries and health professionals and it will also be useful for consumers. Herbal medicines are generally sold as food supplements, but a common regulatory status in the various European countries does not exist. As a consequence, information on clinical indications for use, efficacy and safety are influenced by different opinions, according to the clinical or traditional experience of various folk medicines available in each European country. The European Directive 2004/24/EC released in 2004 by the European Parliament and by the Council of Europe provides the basis for the use of herbal medicines in Europe going forward. The Directive establishes that herbal medicines released in the market need authorization by the national regulatory authorities of each European country and that these products must have a recognized level of safety and efficacy. The safety of herbal medicinal products will be evaluated on the basis of existing scientific literature (data from clinical studies, case reports, pre-clinical studies). When data on safety are not sufficient, it will be communicated to consumers. According to the criteria of safety and efficacy, we will have two kinds of herbal medicinal products in the future: (i) 'well established use herbal medicinal products' (medicinal herbs with a recognized level of safety and efficacy); and (ii) 'traditional use herbal medicinal products'. The later category will include those medicinal herbs that do not have a recognized level of efficacy but are acceptably safe. Even though the fundamental objective of the new European herbal legislation is the harmonization of the market of herbal medicines, important regulations have been introduced, which will contribute to safer use of herbal substances if adopted by the whole of the European community.  相似文献   

13.
目的 验证中药材立式快速徒手切片法的可行性及操作难易性,并为不同类型药材徒手切片方法提供参考及思路。方法 选择不同类具有代表性的药材采用立式快速徒手切片法显微制片,观察其切制效果。结果 实验表明,大多数药材用此方法在几分钟之内就可获得符合检验/检测要求的显微切片。结论 立式快速徒手切片法迅速有效,简单实用,可广泛用于中药材显微鉴定的徒手切片,且符合《中国药典》关于显微鉴定的要求。  相似文献   

14.
The quality control of medicinal herbs post harvesting or after collection becomes very critical because of susceptibility to fungal invasion during storage depending on the temperature and humidity of the storage area. The information on moisture equilibrium is important on the process and storage of foods which can be extended to medicinal herbs. In the present study, the growth of Aspergillus flavus was observed on selected ten medicinal herbs with water activity aw above 0.81 when stored at 25 +/- 2 degrees C, 30 +/- 2 degrees C and 40 +/- 2 degrees C except for Picrorhiza kurrooa and Alpinia galanga which were found to have anti-fungal properties. Aspergillus flavus did not grow in any samples of medicinal herbs with water activity aw below 0.81 at temperatures of 25 +/- 2 degrees C, 30 +/- 2 degrees C and 40 +/- 2 degrees C. Also Aspergillus flavus did not grow in any samples of medicinal herbs with water activity aw above 0.81 when stored below 10 +/- 2 degrees C. Therefore it can be concluded that the contamination of medicinal herbs with aflatoxins can be minimized by controlling water activity and storage temperature. Sorption isotherms (desorption) can be interpreted to determine the optimum drying which can lower the water activity to the level required for preventing growth of Aspergillus flavus and also for ensuring quality of medicinal herbs which may get destroyed upon over drying. Furthermore, it also saves incremental cost in prolonged drying over the optimum drying.  相似文献   

15.
Phenanthrene-induced oxidative DNA damage in lymphocyte was evaluated using comet assay and the suppressive effects of Korean medicinal herbs on the DNA damage were examined to screen the medicinal herbs that help to detoxify environmental pollutants. Extracts of Acanthopanax, Benincasae and green tea polyphenols effectively inhibited the phenanthrene-induced oxidative DNA damage in lymphocytes among tested herbs in this study. The present study suggests that Korean medicinal herbs by virtue of their antioxidant potential may be used as effective agents to reduce the oxidative DNA damage by phenanthrene.  相似文献   

16.
“十八反”配伍禁忌研究现状与思考   总被引:2,自引:0,他引:2  
目的通过查阅、整理相关文献,总结"十八反"配伍禁忌的研究现状,探讨十八反毒性作用及物质基础,为临床安全用药提供重要的依据。方法对近15年来国内外发表的相关文献进行分析、整理和归纳。结论 "十八反"不是绝对配伍禁忌,其毒性作用与配伍比例、剂量等诸多因素有关。十八反配伍禁忌合理性仍存在争议,需加强对十八反配伍毒性及毒性成分的深入研究。  相似文献   

17.
目地:评估我国居民中药材铅暴露量及其潜在的健康风险,评价我国当前执行的中药材中铅限量标准的适宜性。方法2008-2016年在全国采集各类中药材2056份,检测铅含量水平。采用多阶段分层随机抽样方法,在黑龙江、辽宁、江西、贵州和甘肃5省份采用入户面对面问卷方式调查5739名18岁及以上成年人中药材消费情况。结合中药材中铅含量水平和中药材消费量数据,采用确定性评估方法,对我国居民中药材中铅暴露风险进行评估。并对我国当前执行的中药材中铅限量标准的适宜性进行评价。结果检测的2056份中药材样本,铅平均含量为1.04mg/kg,超标率3.79%,其中动物类药材铅平均含量2.96mg/kg,高于植物类药材平均含量0.97mg/kg。暴露评估结果显示,常规服用中药材人群铅暴露的健康风险较低;但对于作为药膳食用中药材的人群和长期以较高剂量服用/食用中药材者,铅暴露导致的健康风险相对较高。结论在当前中药材铅残留量水平下,我国大部分居民因中药材导致铅暴露的健康风险较低,但对于终生长期服用或作为药膳大量食用中药材者,铅暴露导致的健康风险需要关注。  相似文献   

18.
The process of evaluating medicinal herbs is complex, and there is a need to carefully define a research strategy that addresses a solution to safe and efficacious herbal products. Notwithstanding the immense value of distilling the pharmacological activity of an herb into a chemical suitable for drug development, another approach is to develop a standardized herbal extract that yields consistent pharmacological activity. However, it frequently is forgotten that even in an extract several active ingredients contribute to the pharmacological action. Sufficient evidence exists to suggest that extracts of medicinal herbs, once isolated in their pure state, can produce pharmacological effects that differ significantly from that of the whole herb. This article discusses a research-based strategy that may be suitable for validating, in part, the putative health benefits of medicinal herbs. Additionally, the body of scientific evidence that underpins the pharmacological activity of several herbs is reviewed briefly.  相似文献   

19.
道地药材发展策略探讨   总被引:4,自引:4,他引:4  
目的:探讨道地药材的发展策略,促进道地药材的保护和发展。方法:研究道地药材的形成和发展现状,提出发展策略。结果与结论:道地药材是中医药文化的瑰宝,保护和发展道地药材,促进道地药材持续、健康发展具有重要意义。  相似文献   

20.
目的针对中药炮制学传统教学模式中存在的不足,对教学方法进行改革。方法在中药炮制学教学实践中引入以问题为基础的教学法(PBL)。结果学生普遍对PBL教学法的实践反映较好,既掌握了课程的重点、难点内容,又增强了对学科前沿知识的了解,收到好的教学效果。结论有必要在中药炮制学教学中引入PBL教学法。  相似文献   

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